*: Add or fix compatibility for following old {quote:ClassAd} methods:
 *:: ClassAd::Assign() *DONE*
 *:: ClassAd::LookupString(MyString)
-*:: ClassAd::Insert(const char*)
+*:: ClassAd::Insert(const char*) *DONE*
 *:: ClassAd::put()
 *:: ClassAd::initFromStream()
 *:: ClassAd::AssignExpr() *DONE*